Ok this trick didn't work and I just did it to three sepearate people 3 diffrent times here is how I did it.
I said pick a number "BETWEEN!" 1 and 50 both digits of the number must be odd numbers (I show my two fingers just as a mental note two them) and I say "I feel 37" they say nope and have other numbers like 17
on all three tries I said "I am not getting a clear connection lets try again" this time pick a even number "BETWEEN!" 50 and 100 the two digits you pick must both be even numbers they say "OK" and I say I feel a strong feeling of the number 68 and all three time it was no again so I am not impressed!
Most people say 17 or 37. Try to say something like: "don't use the numbers 1 and 5, they're too often used. Use hard numbers." That get's pple every time. The only numbers are now 37 and 39. Just say "37", if it doesn't get reactions, just say: "no? wait a minute, (close your eyes at this point) 39! (open your eyes as you say the number)". This works with me every time.
Hope that helps ('cause it's a cool trick)